Optimization of PS-7 production process by Azotobacter indicus var. myxogenes L3 using the control of carbon source composition
DC Field | Value | Language |
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dc.contributor.author | Ra, C.H. | - |
dc.contributor.author | Kim, K.M. | - |
dc.contributor.author | Hoe, P.W. | - |
dc.contributor.author | Lee, S.J. | - |
dc.contributor.author | Kim, S.-K. | - |
dc.date.accessioned | 2021-09-09T15:50:59Z | - |
dc.date.available | 2021-09-09T15:50:59Z | - |
dc.date.created | 2021-06-17 | - |
dc.date.issued | 2008 | - |
dc.identifier.issn | 1598-642X | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/125323 | - |
dc.description.abstract | The proteins in whey are separated and used as food additives. The remains (mainly lactose) are spray-dried to produce sweet whey powder, which is widely used as an additive for animal feed. Sweet whey powder is also used as a carbon source for the production of valuable products such as polysaccharides. Glucose, fructose, galactose, and sucrose as asupplemental carbon source were evaluated for the production of PS-7 from Azotobacter indicus var.myxogenes L3 grown on whey based MSM media. Productions of PS-7 with 2% (w/v) fructose and sucrose were 2.05 and 2.31 g/L, respectively. The highest production of PS-7 was 2.82 g/L when 2% (w/v) glucose was used as the carbon source. Galactose showed low production of PS-7 among the carbon sources tested. The effects of various carbon sources addition to whey based MSM medium showed that glucose could be the best candidate for the enhancement of PS-7 production using whey based MSM medium. To evaluate the effect of glucose addition to whey based media on PS-7 production, fermentations with whey and glucose mixture (whey 1, 2, 3%; whey 1% + glucose 1%, whey 1% + glucose 2% and glucose 2%, w/v) were carried out. Significant enhancement of PS-7 production with addition of 1% (w/v) and 2% (w/v) glucose in 1% (w/v) whey media was observed. The PS-7 concentration of 2% glucose added whey lactose based medium was higher than that of 1% glucose addition, however, the product yield YP/S was higher in 1% glucose added whey lactose based MSM medium. Therefore, the optimal condition for the PS-7 production from the Azotobacter indicus var.myxogenes L3, was 1% glucose addition to 1% whey lactose MSM medium. | - |
dc.language | Korean | - |
dc.language.iso | ko | - |
dc.title | Optimization of PS-7 production process by Azotobacter indicus var. myxogenes L3 using the control of carbon source composition | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, K.M. | - |
dc.identifier.scopusid | 2-s2.0-80052819823 | - |
dc.identifier.bibliographicCitation | Korean Journal of Microbiology and Biotechnology, v.36, no.1, pp.61 - 66 | - |
dc.relation.isPartOf | Korean Journal of Microbiology and Biotechnology | - |
dc.citation.title | Korean Journal of Microbiology and Biotechnology | - |
dc.citation.volume | 36 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 61 | - |
dc.citation.endPage | 66 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.identifier.kciid | ART001237272 | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.subject.keywordAuthor | 5-L fermentor | - |
dc.subject.keywordAuthor | Azotobacter indicus var. myxogenes L3 | - |
dc.subject.keywordAuthor | Heteropolysaccharide-7 | - |
dc.subject.keywordAuthor | Whey | - |
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